Title:
A rotating anode X-ray tube assembly and an X ray imaging apparatus
Document Type and Number:
Japanese Patent JP5988823
Kind Code:
B2
Abstract:
A rotary anode X-ray tube (2) in this rotary anode X-ray tube device (1) is characterized in having: an anode member (4) that is irradiated by an electron beam emitted from a cathode member (3) and thereby caused to generate X-rays; a rotary member (5, 6) for supporting the anode member; a bearing housing (7) for rotatably supporting the rotary member via a roller bearing (10A, 10B); and a container for hermetically enclosing the cathode member, the anode member, the rotary member, and the bearing housing; a gap (S1) being formed at least between the inner surface of the bearing housing and the outer ring (101) of the roller bearing (10A) disposed on the anode member side in the axial direction of the rotary members; and the gap being filled with a liquid metal (18). This provides a rotary anode X-ray tube device and an X-ray image-capturing device in which rotary vibration is reduced and roller bearing life is improved while stable rotation is enabled over a long period of time.
Inventors:
Tomoaki Inoue
Yamashita Tomoaki
Koji Akita
Yoshitaka Seki
Yamashita Tomoaki
Koji Akita
Yoshitaka Seki
Application Number:
JP2012231893A
Publication Date:
September 07, 2016
Filing Date:
October 19, 2012
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H01J35/10
Domestic Patent References:
| JP2126544A | ||||
| JP2267265A | ||||
| JP61083243U | ||||
| JP11273599A | ||||
| JP62037872U | ||||
| JP2004152767A |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office